Add sql macro
This gives SQL queries a little more Lisp-y feel and allows for better formatting of the code written.
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1 changed files with 46 additions and 26 deletions
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@ -21,6 +21,10 @@
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(export '(clark))
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(defmacro sql (&body body)
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(apply 'concatenate 'string
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(mapcar (lambda (itm) (format nil "~A " itm)) body)))
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(defvar *db* nil
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"The database connection.")
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@ -69,7 +73,8 @@
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(when url-or-id
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(if (integerp url-or-id)
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(execute-non-query
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*db* "DELETE FROM bookmark_tag WHERE bookmark_id = ?" url-or-id)
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*db* (sql delete from "bookmark_tag" where "bookmark_id" = ?)
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url-or-id)
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(clear-tags (get-bookmark-id url-or-id)))))
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(defun ensure-db-exists (name)
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@ -77,19 +82,30 @@
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(let ((db-exists (probe-file name)))
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(setf *db* (connect name))
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(unless db-exists
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(execute-non-query *db* "CREATE TABLE bookmark (url VARCHAR(255) UNIQUE, date INTEGER, name VARCHAR(255), description TEXT)")
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(execute-non-query *db* "CREATE TABLE tag (name VARCHAR(255) UNIQUE)")
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(execute-non-query *db* "CREATE TABLE bookmark_tag (bookmark_id INTEGER REFERENCES bookmark(rowid), tag_id INTEGER REFERENCES tag(rowid), PRIMARY KEY (bookmark_id, tag_id))"))))
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(execute-non-query
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*db* (sql create table "bookmark" ("url" varchar (255) unique\,
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"date" integer\,
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"name" varchar (255)\,
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"description" text)))
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(execute-non-query
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*db* (sql create table "tag" ("name" varchar (255) unique)))
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(execute-non-query
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*db* (sql create table "bookmark_tag"
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("bookmark_id" integer references "bookmark(rowid)"\,
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"tag_id" integer references "tag(rowid)"\,
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primary key ("bookmark_id"\, "tag_id")))))))
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(defun get-bookmarks ()
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"Get a list of all bookmarks.
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The result contains the url, name and the description of the bookmark."
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(execute-to-list *db* "select url, name, description from bookmark"))
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(execute-to-list
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*db* (sql select "url, name, description" from "bookmark")))
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(defun get-bookmark-id (url)
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"Get the id of the bookmark for URL."
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(execute-single *db* "SELECT rowid FROM bookmark WHERE url = ?" url))
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(execute-single
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*db* (sql select "rowid" from "bookmark" where "url" = ?) url))
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(defun get-db-location ()
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"Get the location of the database."
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@ -109,7 +125,8 @@ The result contains the url, name and the description of the bookmark."
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(defun get-tag-id (name)
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"Get the rowid of tag NAME."
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(execute-single *db* "SELECT rowid FROM tag WHERE name = ?" name))
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(execute-single
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*db* (sql select "rowid" from "tag" where "name" = ?) name))
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(defun help-message ()
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(format t (concatenate
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@ -133,17 +150,19 @@ The result contains the url, name and the description of the bookmark."
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(defun insert-bookmark (url name description)
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"Insert URL, NAME and DESCRIPTION into the bookmark table."
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(execute-non-query *db* "INSERT INTO bookmark VALUES (?, ?, ?, ?)"
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(execute-non-query
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*db* (sql insert into "bookmark" values (?\, ?\, ?\, ?))
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url (get-universal-time) name description))
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(defun insert-bookmark-tag (bookmark-id tag-id)
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"Insert BOOKMARK-ID and TAG-ID into the bookmark_tag table."
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(execute-non-query *db* "INSERT INTO bookmark_tag VALUES (?, ?)"
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(execute-non-query
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*db* (sql insert into "bookmark_tag" values (?\, ?))
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bookmark-id tag-id))
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(defun insert-tag (name)
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"Insert tag NAME into the database and return its rowid."
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(execute-non-query *db* "INSERT INTO tag VALUES (?)" name)
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(execute-non-query *db* (sql insert into "tag" values (?)) name)
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(last-insert-rowid *db*))
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(defun load-db ()
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@ -226,7 +245,8 @@ option will replace the previous value for that part."
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qargs (nconc qargs (list (cadr desc-lst)))))
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(when qargs
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(apply #'execute-non-query *db*
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(format nil "UPDATE bookmark SET ~A WHERE url = ?" query)
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(format
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nil (sql update "bookmark" set "~A" where "url" = ?) query)
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(append qargs (list url))))))
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(defcommand exists (url)
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@ -235,9 +255,10 @@ option will replace the previous value for that part."
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Check if URL exists in the database. Prints `yes' when found and `no'
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otherwise."
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(format t "~:[no~;yes~]~%"
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(format
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t "~:[no~;yes~]~%"
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(execute-single
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*db* "SELECT rowid FROM bookmark WHERE url = ?" url)))
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*db* (sql select "rowid" from "bookmark" where "url" = ?) url)))
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(defcommand help (&optional command)
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"Show help message."
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@ -260,7 +281,7 @@ otherwise."
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Remove URL from the database."
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(clear-tags url)
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(execute-non-query
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*db* "DELETE FROM bookmark WHERE url = ?" url))
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*db* (sql delete from "bookmark" where "url" = ?) url))
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(defcommand search (str)
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"Search through bookmarks."
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@ -270,14 +291,13 @@ Search the database for STR. Matches are made for substrings of a
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bookmark's name or an exact match for a tag."
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(map nil #'print-bookmark
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(execute-to-list
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*db* (concatenate 'string
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"SELECT url, name, description "
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"FROM bookmark "
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"WHERE name LIKE ? "
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"OR ? IN (SELECT name "
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"FROM tag "
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"JOIN bookmark_tag ON (tag_id = tag.rowid) "
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"WHERE bookmark_id = bookmark.rowid)")
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*db* (sql select "url, name, description"
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from "bookmark"
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where "name" like ?
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or ? in (select "name"
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from "tag"
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join "bookmark_tag" on ("tag_id = tag.rowid")
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where "bookmark_id" = "bookmark.rowid"))
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(format nil "%~A%" str) str)))
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(defcommand set-tags (url &rest tags)
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